Journal Article

FZJ-2022-03536

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Control of structure and spin texture in the van der Waals layered magnet CrSBr

Klein, J. (Corresponding author)Extern* ; Pham, T. ; Thomsen, J. D. ; Curtis, J. B. ; Denneulin, T.FZJ* ; Lorke, M.FZJ* ; Florian, M. ; Steinhoff, A. ; Wiscons, R. A. ; Luxa, J. ; Sofer, Z. ; Jahnke, F.FZJ* ; Narang, P. (Corresponding author) ; Ross, F. M. (Corresponding author)

2022
Nature Publishing Group UK [London]

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Please use a persistent id in citations: http://hdl.handle.net/2128/31993  doi:10.1038/s41467-022-32737-8

Abstract: Controlling magnetism at nanometer length scales is essential for realizing high-performance spintronic, magneto-electric and topological devices and creating on-demand spin Hamiltonians probing fundamental concepts in physics. Van der Waals (vdW)-bonded layered magnets offer exceptional opportunities for such spin texture engineering. Here, we demonstrate nanoscale structural control in the layered magnet CrSBr with the potential to create spin patterns without the environmental sensitivity that has hindered such manipulations in other vdW magnets. We drive a local phase transformation using an electron beam that moves atoms and exchanges bond directions, effectively creating regions that have vertical vdW layers embedded within the initial horizontally vdW bonded exfoliated flakes. We calculate that the newly formed two-dimensional structure is ferromagnetically ordered in-plane with an energy gap in the visible spectrum, and weak antiferromagnetism between the planes, suggesting possibilities for creating spin textures and quantum magnetic phases.

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Contributing Institute(s):

1. Physik Nanoskaliger Systeme (ER-C-1)

Research Program(s):

1. 5351 - Platform for Correlative, In Situ and Operando Characterization (POF4-535) (POF4-535)
2. 3D MAGiC - Three-dimensional magnetization textures: Discovery and control on the nanoscale (856538) (856538)
3. ESTEEM3 - Enabling Science and Technology through European Electron Microscopy (823717) (823717)
4. DFG project 405553726 - TRR 270: Hysterese-Design magnetischer Materialien für effiziente Energieumwandlung (405553726) (405553726)

Appears in the scientific report 2022

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